八年级英语上册 Unit 4 Inventions Grammar课件 .ppt

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1、Period 3,Grammar,Module 2 Science and technology,Oxford English,Unit 4,Inventions,Life without ,Revision,1,I. 写出下列形容词的比较级和最高级。1. hot _ _2. busy _ _3. new_ _4. wide _ _3. slowly_ _4. comfortable _ _,hotter; the hottest,busier; the busiest,thinner; the thinnest,wider; the widest,more slowly; the most

2、slowly,more comfortable; the most comfortable,Good, better, best.Never let it rest. Until your good is better and your better is best.,Grammar A good, bad and far,2,形容词比较级和最高级的不规则变化,【语法笔记】1elder和eldest也可以表示家庭成员出生顺序，但它们只能用在名词前作定语，不能作表语。例如： 判断正误：1）我的哥哥十岁。 My elder brother is ten years old. ( ) My olde

3、r brother is ten years old. ( ) 2）他年纪比我大。 He is older than me. ( ) He is elder than me. ( )2farther和further都能表示时间、距离的“更远”，但要表达“进一步”的时候，只能用further。例如： 1. His home is _from this park _mine. 他家比我家离这个公园远。 2. The police decided to take _ action. 警察决定采取进一步行动。,X,farther/ further,than,further,形容词的比较级和最高级的不规

4、则变化,【热身训练1】用括号中所给单词的适当形式填空。1. Who is _ (good) student in your class? 2. Jack has _ (many) books than Jim. 3. How far is it to the airport? 20 kilometres? No, its _ (far). About 30 kilometres.,the best,more,farther,A1 Look at the school report below. In pairs, ask and answer questions about it.,Daisy

5、 got an 83 in Art.,Daisys mark in Art.,got a better mark,Paul got a better mark in Science than Martin.,got a worse mark,Eric got a worse mark in Science than Alice.,got the worst mark,Eric got the worst mark in Science.,A2 Look at the map below. In pairs, ask and answer questions about it. Follow t

6、he example.,3 Whose home ., Martins or Paulines?,4 Whose home ., Alices, Belindas or Erics?,S1: Whose home is farther/further from school, Martins or Paulines?S2: Martins home is farther/further from school than Paulines.,S1: Whose home is the farthest/furthest from school, Alices, Belindas or Erics

7、?S2: Alices home is the farthest/furthest from school.,S1: Whose home is farther/further from Alices, Daisys or Pauls?S2: Pauls home is farther/further from Alices.S1: Whose home is the farthest/furthest from Alices, Daisys, Pauls or Erics? S2: Erics home is the furthest from Alices.,In pairs, ask a

8、nd answer questions about the distances. Follow the example.,But remember:,With light bulbs, people can do _ things than before at night.,Oil lamps produce _ light than light bulbs.,Carriages carry _ passengers than trains.,Light bulbs produce _ light than oil lamps.,more,more,less,fewer,Example:Ben

9、 has _ paper than Judy but _ storybooks than Alice.,more,fewer,Complete the sentences with the comparative or superlative form of many, much, few and little.,Judy has _ storybooks than Alice but _ notebooks than Ben. Ben has _ ink than Judy but _ paper than Alice. Alice has _ storybooks among/of the

10、 three students.,more,fewer,more,less,the most,Judy has _ paper among/of the three students. Alice has _ notebooks among/of the three students. Ben has _ ink among/of the three students.,the most,the fewest,the least,The first computer was as big as a room.,With light bulbs, people can do as many th

11、ings in the evenings as they can in the daytime.,Grammar B (not) asas,3,as.as 意为“和一样”，not as.as 意为“不如一样”，表示 同 级的比较。1基本结构：as + adj. + as，否定形式为：not as/so+ adj. + as，中间用形容词的原级。例如： This book is as interesting as that one. 达本书和那本书一样有趣。 This book is not as/so interesting as that one. 这本书没有那本书有趣。,2当as.as中间

12、加名词时，结构为：as+ many/much + n+as，其否定形式为：not as+ many/much + n. +as。注意： “many+ 可数名词复数”， “much +不可数名词”。例如： 1) I have as many books as Tom. 我的书和汤姆一样多。 2) Lily ate as much rice as Peter. 莉莉吃了和皮特一样多的米饭。,(not) as as,【热身训练3】根据表格中的内容，用(not) as as来完成句子。,1. Kitty is _ (old) Jack. 2. Kitty is _ (heavy) Simon.3. S

13、imon is _ (tall) Kate.,as old as,not as heavy as,not as tall as,有时，“not as (so) +形容词的原级+as”可以与“形容词的比较级+than”相互转换。如：Mary is not as tall as Lucy. 玛丽不如露西高。=Mary is shorter than Lucy./Lucy is taller than Mary. 若涉及数量，则用“as many+可数名词复数+as”和“as much+不可数名词+as”来表示“和一样多”。如：,many,much,B1 Look at the pictures b

14、elow and complete the following sentences.,is as high as,is not as deep as,are not as wide as,B2 Look at the table and the pictures below. Then complete the sentences with (not) as many/much . as.,throw away as much,as,throw away as much,as,dont throw away as much,as,dont throw away as many,as,Examp

15、le:,Mary doesnt have as many storybooks as Sandy.,Talk about the things the students have with (not) as few/little/many/much as.,Lucy has as many storybooks as Mary.,has as many as,doesnt have as many as,Lucy has as many paper as Mary.,has as much as,Lucy has as many ink as Mary.,has as much as,Mary

16、/Lucy notebooks Sandy.,doesnt have as many as,Sandy paper Mary/Lucy.,doesnt have as much as,Mary/Lucy ink Sandy.,doesnt have as much as,Mary ink Lucy.,has as little as,Lucy notebooks Mary.,has as few as,H,Homework,调查并比较班级同学的不同方面，如身高、体重等。要求在比较中运用形容词good，bad，far，many，much和little等的比较级和最高级以及(not) as as结

17、构。完成综合练习册第51至53页Grammar的练习。,【巩固练习】一、根据句意，用(not) as as完成下列句子。,1. Im _ (thin) Mike. Im fatter than him. 2. She was _ (tired) me because we went hiking together. 3. Its not cold today, but it is _ (warm) yesterday.,not as thin as,as tired as,not as warm as,4. Anns bicycle was _ (cheap) mine. We paid th

18、e same price.5. Her garden is _ (beautiful) Janes. Shes really done a good job.,as cheap as,as beautiful as,注意 形容词的比较级前面可以用much, even, a little, a lot等来修饰，最高级前面常有定冠词the。二、用括号中所给单词的适当形式填空。(1) Bill is _ (young) than Frank, but he is _ (tall) than Frank. (2) A dictionary is much _ (expensive) than a st

19、orybook.(3) Which is _ (big), the apple, the orange or the pear?,younger,taller,more expensive,the biggest,(4) Is it 10 kilometres to the train station? No, its _ (far). Its about 25 kilometres.(5) He is _ (bad) at Maths. He is much _ (bad) at Chinese and he is _ (bad) at English among all the subje

20、cts.,farther,bad,worse,the worst,(6) We have a lovely room. Its one of _ (nice) in the hotel.(7) Li Ping is one of the cleverest _(student) in our school. (8) Of all the questions, this one seems to be _ (difficult) for me to answer,the nicest,students,the most difficult,三、综合练习1. This box is_ that o

21、ne. A. heavy than B. so heavy than C. heavier as D. as heavy as2 This book is_ that one, but_ than that one. A. as difficult as; expensive B. as more difficult as; more expensive C. as difficult as; more expensive D. more difficult as; as expensive,3. I think the story is not so _ as that one. A. in

22、teresting B. interested C. more interesting D. most interesting4. I think science is _ than Japanese. A. much important B. important C. much more important D. more much important,5. It was very hot yesterday, but it is_ today.A. even hotter B. more hotter C. much more hot D. much hot 6. China is lar

23、ger than _ in Africa A. any other country B. other countries C. the other country D. any country,7. Tom is stronger than _ in his class.A. any other boy B. any boys C. any boy D. other boy 8. Which is_ country, China or Japan?A. the large B. the larger C. larger D. largest,9. Of the two cups, he bought .A. the smaller B. the smallest C. small D. smaller10. Which do you like _, tea or coffee?A. well B. better C. best D. most11. Who jumped_of all? A. far B. farther C. farthest D. the most far,中考真题热身,1.ABDDC6. BCAAD11. CDCCD16. BBCBBD,